Strontium aluminate

<p>Strontium aluminate is an <a href="/facts/Aluminate/dRaFaNlM">aluminate</a> compound with the chemical formula SrAl2O4 (sometimes written as SrO·Al2O3). It is a pale yellow, <a href="/facts/Monoclinic/5PCwXvzX">monoclinic</a> crystalline powder that is odourless and non-flammable. When <a href="/facts/Activator_(phosphor)/g1DA9jmb">activated</a> with a suitable <a href="/facts/Dopant/DvChmeRL">dopant</a> (e.g. <a href="/facts/Europium/dqmBm1vr">europium</a>, written as Eu:SrAl2O4), it acts as a <a href="/facts/Photoluminescence/L1u2PJIa">photoluminescent</a> <a href="/facts/Phosphor/vTLjrGDE">phosphor</a> with long persistence of <a href="/facts/Phosphorescence/WshJFsKV">phosphorescence</a>.
</p><p><a href="/facts/Strontium/ABaA5qQK">Strontium</a> aluminates exist in a variety of other compositions including SrAl4O7 (monoclinic), Sr3Al2O6 (<a href="/facts/Cubic_crystal_system/92Co7BKM">cubic</a>), SrAl12O19 (<a href="/facts/Hexagonal_crystal_family/sSSok8wo">hexagonal</a>), and Sr4Al14O25 (<a href="/facts/Orthorhombic/3zo4F8P0">orthorhombic</a>). The different compositions cause different colours of light to be emitted.
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Strontium aluminate open-in-new

Strontium aluminate